Problem 5. Determine the possible reaction forces at points O, A, C and D for the system shown below. Discuss the solution if weight of the block is specified. Gap between points C and D are small...

I need explanations for this question. I wonder about your thoughts as an expert. This subject is really challenging me. Thank you for your attention.

Extracted text: Problem 5. Determine the possible reaction forces at points O, A, C and D for the system shown below. Discuss the solution if weight of the block is specified. Gap between points C and D are small compared to the remaining dimensions. R 2 D R B C Problem 5.